<template>
    <div class="app-container">
        <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch"
                 label-width="68px">
            <el-form-item label="栏目名称" prop="name">
                <el-input v-model="queryParams.name" placeholder="请输入栏目名称" clearable
                          @keyup.enter.native="handleQuery"/>
            </el-form-item>
            <el-form-item label="是否显示" prop="visible">
                <el-select v-model="queryParams.visible" placeholder="请选择是否显示" clearable>
                    <el-option v-for="dict in dict.type.sys_yes_no" :key="dict.value" :label="dict.label"
                               :value="dict.value"/>
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
                <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
            </el-form-item>
        </el-form>
        <TableCard>
            <el-row :gutter="10" class="mb8">
                <el-col :span="1.5">
                    <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
                               v-hasPermi="['cms:catalog:add']">新增
                    </el-button>
                </el-col>
                <el-col :span="1.5">
                    <el-button type="info" plain icon="el-icon-sort" size="mini" @click="toggleExpandAll">展开/折叠
                    </el-button>
                </el-col>
                <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
            </el-row>

            <el-table  :border="Global.tableShowBorder" v-if="refreshTable" v-loading="loading" :data="catalogList" row-key="id"
                      :default-expand-all="isExpandAll" :tree-props="{children: 'children', hasChildren: 'hasChildren'}">

                <el-table-column label="栏目名称" prop="name"/>
                <el-table-column label="封面" align="center" prop="cover" width="200">
                    <template slot-scope="scope">
                        <image-preview :src="scope.row.cover" :width="50" :height="50"/>
                    </template>
                </el-table-column>
                <el-table-column label="地址" align="center" prop="url"/>
                <el-table-column label="打开类型" align="center" prop="openType">
                    <template slot-scope="scope">
                        <dict-tag :options="dict.type.cms_catalog_opentype" :value="scope.row.openType"/>
                    </template>
                </el-table-column>
                <el-table-column label="类型" align="center" prop="type">
                    <template slot-scope="scope">
                        <dict-tag :options="dict.type.cms_catalog_type" :value="scope.row.type"/>
                    </template>
                </el-table-column>

                <el-table-column label="是否显示" align="center" prop="visible" width="150">
                    <template slot-scope="scope">
                        <dict-tag :options="dict.type.sys_yes_no" :value="scope.row.visible"/>
                    </template>
                </el-table-column>
                <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
                    <template slot-scope="scope">
                        <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)" v-hasPermi="['cms:catalog:edit']">修改</el-button>
                        <el-button size="mini" type="text" icon="el-icon-plus" @click="handleAdd(scope.row)" v-hasPermi="['cms:catalog:add']">新增</el-button>
                        <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)" v-hasPermi="['cms:catalog:remove']">删除</el-button>
                    </template>
                </el-table-column>
            </el-table>
        </TableCard>
        <!-- 添加或修改栏目管理对话框 -->
        <el-dialog :title="title" :visible.sync="open" width="1000px" append-to-body>
            <el-form ref="form" :model="form" :rules="rules" label-width="120px">
                <el-form-item label="父级栏目id" prop="parentId">
                    <treeselect v-model="form.parentId" :options="catalogOptions" :normalizer="normalizer"
                                placeholder="请选择父级栏目id"/>
                </el-form-item>
                <el-form-item label="栏目名称" prop="name">
                    <el-input v-model="form.name" placeholder="请输入栏目名称"/>
                </el-form-item>
                <el-form-item label="封面">
                    <image-upload v-model="form.cover"/>
                </el-form-item>
                <el-form-item label="地址" prop="url">
                    <el-input v-model="form.url" placeholder="请输入地址"/>
                </el-form-item>
                <el-form-item label="打开类型">
                    <el-radio-group v-model="form.openType">
                        <el-radio v-for="dict in dict.type.cms_catalog_opentype" :key="dict.value" :label="dict.value">{{ dict.label }}</el-radio>
                    </el-radio-group>
                </el-form-item>
                <el-form-item label="类型">
                    <el-radio-group v-model="form.type">
                        <el-radio v-for="dict in dict.type.cms_catalog_type" :key="dict.value" :label="dict.value">{{ dict.label }}</el-radio>
                    </el-radio-group>
                </el-form-item>
                <el-form-item label="是否显示">
                    <el-radio-group v-model="form.visible">
                        <el-radio v-for="dict in dict.type.sys_yes_no" :key="dict.value" :label="dict.value">{{ dict.label }}</el-radio>
                    </el-radio-group>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button type="primary" @click="submitForm">确 定</el-button>
                <el-button @click="cancel">取 消</el-button>
            </div>
        </el-dialog>
    </div>
</template>

<script>
import {listCatalog, getCatalog, delCatalog, addCatalog, updateCatalog} from "@/api/cms/catalog";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";

export default {
    name: "Catalog",
    dicts: ['cms_catalog_type', 'sys_yes_no', 'cms_catalog_opentype'],
    components: {
        Treeselect
    },
    data() {
        return {
            // 遮罩层
            loading: true,
            // 显示搜索条件
            showSearch: true,
            // 栏目管理表格数据
            catalogList: [],
            // 栏目管理树选项
            catalogOptions: [],
            // 弹出层标题
            title: "",
            // 是否显示弹出层
            open: false,
            // 是否展开，默认全部展开
            isExpandAll: true,
            // 重新渲染表格状态
            refreshTable: true,
            // 查询参数
            queryParams: {
                name: null,
                url: null,
                openType: null,
                type: null,
                parentId: null,
                cover: null,
                visible: null
            },
            // 表单参数
            form: {},
            // 表单校验
            rules: {}
        };
    },
    created() {
        this.getList();
    },
    methods: {
        /** 查询栏目管理列表 */
        getList() {
            this.loading = true;
            listCatalog(this.queryParams).then(response => {
                this.catalogList = this.handleTree(response.data, "id", "parentId");
                this.loading = false;
            });
        },
        /** 转换栏目管理数据结构 */
        normalizer(node) {
            if (node.children && !node.children.length) {
                delete node.children;
            }
            return {
                id: node.id,
                label: node.name,
                children: node.children
            };
        },
        /** 查询栏目管理下拉树结构 */
        getTreeselect() {
            listCatalog().then(response => {
                this.catalogOptions = [];
                const data = {id: 0, name: '顶级节点', children: []};
                data.children = this.handleTree(response.data, "id", "parentId");
                this.catalogOptions.push(data);
            });
        },
        // 取消按钮
        cancel() {
            this.open = false;
            this.reset();
        },
        // 表单重置
        reset() {
            this.form = {
                id: null,
                name: null,
                url: null,
                openType: "0",

                type: "0",

                parentId: null,
                cover: null,
                visible: "0"

            };
            this.resetForm("form");
        },
        /** 搜索按钮操作 */
        handleQuery() {
            this.getList();
        },
        /** 重置按钮操作 */
        resetQuery() {
            this.resetForm("queryForm");
            this.handleQuery();
        },
        /** 新增按钮操作 */
        handleAdd(row) {
            this.reset();
            this.getTreeselect();
            if (row != null && row.id) {
                this.form.parentId = row.id;
            } else {
                this.form.parentId = 0;
            }
            this.open = true;
            this.title = "添加栏目管理";
        },
        /** 展开/折叠操作 */
        toggleExpandAll() {
            this.refreshTable = false;
            this.isExpandAll = !this.isExpandAll;
            this.$nextTick(() => {
                this.refreshTable = true;
            });
        },
        /** 修改按钮操作 */
        handleUpdate(row) {
            this.reset();
            this.getTreeselect();
            if (row != null) {
                this.form.parentId = row.id;
            }
            getCatalog(row.id).then(response => {
                this.form = response.data;
                this.open = true;
                this.title = "修改栏目管理";
            });
        },
        /** 提交按钮 */
        submitForm() {
            this.$refs["form"].validate(valid => {
                if (valid) {
                    if (this.form.id != null) {
                        updateCatalog(this.form).then(response => {
                            this.$modal.msgSuccess("修改成功");
                            this.open = false;
                            this.getList();
                        });
                    } else {
                        addCatalog(this.form).then(response => {
                            this.$modal.msgSuccess("新增成功");
                            this.open = false;
                            this.getList();
                        });
                    }
                }
            });
        },
        /** 删除按钮操作 */
        handleDelete(row) {
            this.$modal.confirm('是否确认删除栏目管理编号为"' + row.id + '"的数据项？').then(function () {
                return delCatalog(row.id);
            }).then(() => {
                this.getList();
                this.$modal.msgSuccess("删除成功");
            }).catch(() => {
            });
        }
    }
};
</script>
